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arXiv · 0812.4274

Extracting the QGP viscosity from RHIC data -- a status report from viscous hydrodynamics

Huichao Song·Ulrich W. Heinz
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Abstract

We report recent progress on causal viscous hydrodynamics for relativistic heavy ion collisions. For fixed specific shear viscosity eta/s, uncertainties in the elliptic flow arising from initial conditions, equation of state, bulk viscosity and numerical viscosity, and the treatment of the highly viscous hadronic stage and freeze-out procedure are analysed. A comparison of current viscous hydrodynamic results with experimental data yields a robust upper limit eta/s < 5/(4pi).

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Huichao Song, Ulrich W. Heinz. 2009-01-29. Extracting the QGP viscosity from RHIC data -- a status report from viscous hydrodynamics. https://doi.org/10.1088/0954-3899%2F36%2F6%2F064033

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